SU1128843A3 - Способ восстановлени железной руды до губчатого железа в шахтном реакторе - Google Patents

Способ восстановлени железной руды до губчатого железа в шахтном реакторе Download PDF

Info

Publication number: SU1128843A3
Authority: SU; USSR - Soviet Union
Prior art keywords: gas; reactor; zone; cooling; reforming
Prior art date: 1979-10-31

Application number

SU802999796A

Other languages

English (en)

Russian (ru)

Inventor

Федерико Прайс-Фалькон Хуан

Рамон Мартинез-Вера Энрике

Original Assignee

Групо Индастриал Альфа С.А (Фирма)

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1979-10-31

Filing date

1980-10-30

Publication date

1984-12-07

1980-10-30 Application filed by Групо Индастриал Альфа С.А (Фирма) filed Critical Групо Индастриал Альфа С.А (Фирма)

1984-12-07 Application granted granted Critical

1984-12-07 Publication of SU1128843A3 publication Critical patent/SU1128843A3/ru

Links

XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 48
229910052742 iron Inorganic materials 0.000 title claims abstract description 24
238000000034 method Methods 0.000 title claims abstract description 15
238000001816 cooling Methods 0.000 claims abstract description 26
238000002407 reforming Methods 0.000 claims abstract description 21
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 18
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
238000010438 heat treatment Methods 0.000 claims abstract description 11
229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 10
239000000203 mixture Substances 0.000 claims abstract description 10
239000000446 fuel Substances 0.000 claims abstract description 9
239000001569 carbon dioxide Substances 0.000 claims abstract description 8
239000012535 impurity Substances 0.000 claims abstract description 7
239000007788 liquid Substances 0.000 claims abstract description 6
238000011084 recovery Methods 0.000 claims abstract description 5
239000007787 solid Substances 0.000 claims abstract description 5
239000011343 solid material Substances 0.000 claims abstract description 4
239000007789 gas Substances 0.000 claims description 72
238000002309 gasification Methods 0.000 claims description 11
238000000746 purification Methods 0.000 claims description 3
230000035800 maturation Effects 0.000 claims 1
238000006722 reduction reaction Methods 0.000 abstract description 19
238000004519 manufacturing process Methods 0.000 abstract description 4
238000004140 cleaning Methods 0.000 abstract 1
230000003134 recirculating effect Effects 0.000 abstract 1
239000000112 cooling gas Substances 0.000 description 9
238000002347 injection Methods 0.000 description 7
239000007924 injection Substances 0.000 description 7
239000006096 absorbing agent Substances 0.000 description 6
239000001257 hydrogen Substances 0.000 description 6
229910052739 hydrogen Inorganic materials 0.000 description 6
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
239000003245 coal Substances 0.000 description 5
238000005192 partition Methods 0.000 description 5
UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
229910002091 carbon monoxide Inorganic materials 0.000 description 4
239000011261 inert gas Substances 0.000 description 4
VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
229910052799 carbon Inorganic materials 0.000 description 3
238000006243 chemical reaction Methods 0.000 description 3
238000002156 mixing Methods 0.000 description 3
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
238000001833 catalytic reforming Methods 0.000 description 2
239000000463 material Substances 0.000 description 2
229910052751 metal Inorganic materials 0.000 description 2
239000002184 metal Substances 0.000 description 2
239000003345 natural gas Substances 0.000 description 2
230000001105 regulatory effect Effects 0.000 description 2
241000196324 Embryophyta Species 0.000 description 1
241000270295 Serpentes Species 0.000 description 1
241001232253 Xanthisma spinulosum Species 0.000 description 1
238000010521 absorption reaction Methods 0.000 description 1
239000000654 additive Substances 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
RQVYBGPQFYCBGX-UHFFFAOYSA-N ametryn Chemical compound CCNC1=NC(NC(C)C)=NC(SC)=N1 RQVYBGPQFYCBGX-UHFFFAOYSA-N 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
238000005255 carburizing Methods 0.000 description 1
239000003054 catalyst Substances 0.000 description 1
239000002826 coolant Substances 0.000 description 1
238000010586 diagram Methods 0.000 description 1
238000009792 diffusion process Methods 0.000 description 1
239000002803 fossil fuel Substances 0.000 description 1
239000008246 gaseous mixture Substances 0.000 description 1
239000008187 granular material Substances 0.000 description 1
239000011874 heated mixture Substances 0.000 description 1
229930195733 hydrocarbon Natural products 0.000 description 1
150000002430 hydrocarbons Chemical class 0.000 description 1
150000002431 hydrogen Chemical class 0.000 description 1
238000009434 installation Methods 0.000 description 1
238000001465 metallisation Methods 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1
238000013021 overheating Methods 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
239000002245 particle Substances 0.000 description 1
238000001556 precipitation Methods 0.000 description 1
239000011819 refractory material Substances 0.000 description 1
230000000630 rising effect Effects 0.000 description 1
239000004449 solid propellant Substances 0.000 description 1
239000002912 waste gas Substances 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0073—Selection or treatment of the reducing gases
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
- C21B13/029—Introducing coolant gas in the shaft furnaces
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
- C21B2100/22—Increasing the gas reduction potential of recycled exhaust gases by reforming
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
- C21B2100/24—Increasing the gas reduction potential of recycled exhaust gases by shift reactions
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
- C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
- C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
- C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Manufacturing & Machinery (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Manufacture Of Iron (AREA)
Industrial Gases (AREA)

SU802999796A 1979-10-31 1980-10-30 Способ восстановлени железной руды до губчатого железа в шахтном реакторе SU1128843A3 (ru)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/089,902 US4246024A (en)	1979-10-31	1979-10-31	Method for the gaseous reduction of metal ores using reducing gas produced by gasification of solid or liquid fossil fuels

Publications (1)

Publication Number	Publication Date
SU1128843A3 true SU1128843A3 (ru)	1984-12-07

Family

ID=22220149

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SU802999796A SU1128843A3 (ru)	1979-10-31	1980-10-30	Способ восстановлени железной руды до губчатого железа в шахтном реакторе

Country Status (19)

Country	Link
US (1)	US4246024A (fr)
JP (1)	JPS5825727B2 (fr)
AR (1)	AR225934A1 (fr)
AU (1)	AU538947B2 (fr)
BE (1)	BE885920A (fr)
BR (1)	BR8005801A (fr)
CA (1)	CA1153559A (fr)
DD (1)	DD153894A5 (fr)
DE (1)	DE3037865C2 (fr)
ES (1)	ES496420A0 (fr)
FR (1)	FR2468650A1 (fr)
GB (1)	GB2065709B (fr)
IN (1)	IN153109B (fr)
IT (1)	IT1141055B (fr)
MX (1)	MX154127A (fr)
SE (1)	SE448552B (fr)
SU (1)	SU1128843A3 (fr)
ZA (1)	ZA805062B (fr)
ZM (1)	ZM7780A1 (fr)

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DE2911692A1 (de) *	1979-03-24	1980-10-02	Metallgesellschaft Ag	Verfahren zur erzeugung von reduktionsgas aus festen brennstoffen
US4381939A (en) *	1981-01-29	1983-05-03	Midrex Corporation	Method for selective reduction of metallic oxides
US4528030A (en) *	1983-05-16	1985-07-09	Hylsa, S.A.	Method of reducing iron ore
DE3317701C2 (de) *	1983-05-16	1986-08-07	Hylsa S.A., Monterrey, N.L.	Verfahren zum Betreiben eines Bewegtbett-Reduktionsreaktors mit vertikalem Schacht zum Reduzieren von Eisenerz zu Schwammeisen
DE3422186A1 (de) *	1984-06-12	1985-12-12	Korf Engineering GmbH, 4000 Düsseldorf	Verfahren zur direktreduktion von eisenerz oder eisenoxidpellets zu eisenschwamm und vorrichtung zur durchfuehrung dieses verfahrens
US4536213A (en) *	1984-09-10	1985-08-20	Mildrex International, B.V.	Reforming of higher hydrocarbons for metal oxide reduction
AT382166B (de) *	1985-05-13	1987-01-26	Voest Alpine Ag	Verfahren zur direktreduktion von teilchenf¯rmigem eisenoxidhaeltigem material
CA1336359C (fr) *	1987-11-02	1995-07-25	Corporacion Venezolana De Guayana (Cvg)	Methode et appareil de reduction directe du fer
USD435707S (en)	1999-09-07	2000-12-26	Amptek Company Limited	Vacuum cleaner
DE19953298C2 (de) *	1999-11-05	2001-12-06	Vogels Hanns Arnt	Verfahren und Vorrichtungen zur Leistungssteigerung und Brennstoffeinsparung bei der Erzeugung von Eisen
US20050151307A1 (en) *	2003-09-30	2005-07-14	Ricardo Viramontes-Brown	Method and apparatus for producing molten iron
US7608129B2 (en) *	2006-04-24	2009-10-27	Hyl Technologies S.A. De C.V.	Method and apparatus for producing direct reduced iron
CN101755056B (zh) *	2007-05-25	2013-03-27	伊尔技术有限公司	利用合成气直接还原铁矿石的方法和设备
JP2014516377A (ja)	2011-04-15	2014-07-10	バイオジェニックリージェンツエルエルシー	炭素質材料のエネルギー含有量を熱分解から高めるための方法および装置
EP3702325A1 (fr)	2012-05-07	2020-09-02	Carbon Technology Holdings, LLC	Procédé de fabrication d'energie
KR101376138B1 (ko)	2012-12-27	2014-03-19	주식회사 포스코	용철제조장치 및 용철제조방법
US12350648B2 (en)	2013-10-24	2025-07-08	Carbon Technology Holdings, LLC	Methods and apparatus for producing activated carbon from biomass through carbonized ash intermediates
US9475031B2 (en)	2014-01-16	2016-10-25	Biogenic Reagents Ventures, Llc	Carbon micro-plant
EP3110754B1 (fr)	2014-02-24	2026-04-15	Carbon Technology Holdings, LLC	Charbon actif extrêmement mésoporeux
WO2016065357A1 (fr)	2014-10-24	2016-04-28	Biogenic Reagent Ventures, Llc	Compositions halogénées de charbon actif et leurs procédés de préparation et d'utilisation
IL319631A (en)	2018-06-14	2025-05-01	Carbon Tech Holdings Llc	Biogenic porous silicon dioxide carbon compositions and methods for their preparation and use
CN110453027A (zh) *	2019-09-11	2019-11-15	武汉科思瑞迪科技有限公司	一种气基和煤基相结合的竖炉直接还原工艺
CN110438278A (zh) *	2019-09-11	2019-11-12	武汉科思瑞迪科技有限公司	一种气基和煤基相结合的竖炉直接还原工艺
DE102019217631B4 (de) *	2019-11-15	2024-05-29	Thyssenkrupp Steel Europe Ag	Verfahren zur Direktreduktion von Eisenerz
WO2022067137A1 (fr)	2020-09-25	2022-03-31	Carbon Technology Holdings, LLC	Bioréduction de minerais métalliques intégrés à la pyrolyse de biomasse
CN116710403A (zh) *	2020-11-20	2023-09-05	卡本科技控股有限责任公司	与金属矿石的生物还原、氢生产和/或活性炭生产集成的生物质热解
EP4247549A4 (fr) *	2020-11-20	2024-10-30	Carbon Technology Holdings, LLC	Pyrolyse de biomasse intégrée à la bio-réduction de minerais métalliques, de production d'hydrogène et/ou de production de charbon actif
BR112023016400A2 (pt)	2021-02-18	2023-10-31	Carbon Tech Holdings Llc	Produtos metalúrgicos com carbono negativo
CN117425620A (zh)	2021-04-27	2024-01-19	卡本科技控股有限责任公司	具有优化的固定碳的生物碳组合物和其产生方法
MX2024000010A (es)	2021-07-09	2024-03-27	Carbon Tech Holdings Llc	Procesos para producir pelotillas de biocarbono con alto contenido de carbono fijo y reactividad optimizada, y pelotillas de biocarbono obtenidas de los mismos.
MX2024001502A (es)	2021-08-02	2024-05-15	Carbon Tech Holdings Llc	Procesos y sistemas para recapturar carbono a partir de liquidos de pirolisis de biomasa.
DE102021122351A1 (de) *	2021-08-30	2023-03-02	Thyssenkrupp Steel Europe Ag	Verfahren zur Herstellung einer Eisenschmelze
KR20240101647A (ko)	2021-11-12	2024-07-02	카본 테크놀로지 홀딩스, 엘엘씨	최적화된 조성 파라미터를 갖는 바이오카본 조성물 및 이를 제조하는 공정

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US1112007A (en) *	1912-06-13	1914-09-29	Karl Albert Fredrik Hiorth	Process of producing iron and steel directly from the ore
US4019724A (en) *	1973-02-20	1977-04-26	Armco Steel Corporation	Apparatus for the direct reduction of iron ores
US3905806A (en) *	1973-02-20	1975-09-16	Armco Steel Corp	Method for the direct reduction of iron ores
US3827879A (en) *	1973-02-22	1974-08-06	Fierro Esponja	Method for the gaseous reduction of metal ores
US3853538A (en) *	1973-07-20	1974-12-10	Steel Corp	Use of reducing gas by coal gasification for direct iron ore reduction
DE2431537A1 (de) *	1974-07-01	1976-01-22	Metallgesellschaft Ag	Verfahren zur direktreduktion mit reduzierten gasen
DE2438790B2 (de) *	1974-08-13	1976-09-09	Thyssen Purofer GmbH, 4000 Düsseldorf	Verfahren und anlage zur reduktion von eisenerzen, insbesondere von eisenerzpellets
US4108636A (en) *	1974-08-13	1978-08-22	Thyssen Purofer Gmbh	Method of the direct reduction of iron ore
SE387366C (sv) *	1974-12-12	1980-04-14	Stora Kopparbergs Bergslags Ab	Sett for reduktion av finfordelat metalloxidhaltigt material
JPS52155116A (en) *	1976-06-18	1977-12-23	Kobe Steel Ltd	Reduced iron preparation using hydrocarbon gas as reducing agent
US4150972A (en) *	1977-11-17	1979-04-24	Fierro Esponja, S.A.	Controlling carburization in the reduction of iron ore to sponge iron
US4160663A (en) *	1978-02-21	1979-07-10	Jack Hsieh	Method for the direct reduction of iron ore

1979
- 1979-10-31 US US06/089,902 patent/US4246024A/en not_active Expired - Lifetime
1980
- 1980-08-18 ZA ZA00805062A patent/ZA805062B/xx unknown
- 1980-08-21 AU AU61641/80A patent/AU538947B2/en not_active Ceased
- 1980-09-05 AR AR282424A patent/AR225934A1/es active
- 1980-09-10 ZM ZM77/80A patent/ZM7780A1/xx unknown
- 1980-09-11 BR BR8005801A patent/BR8005801A/pt unknown
- 1980-09-16 IT IT24695/80A patent/IT1141055B/it active
- 1980-10-03 IN IN1128/CAL/80A patent/IN153109B/en unknown
- 1980-10-07 DE DE3037865A patent/DE3037865C2/de not_active Expired
- 1980-10-16 FR FR8022157A patent/FR2468650A1/fr active Granted
- 1980-10-22 JP JP55148105A patent/JPS5825727B2/ja not_active Expired
- 1980-10-28 CA CA000363396A patent/CA1153559A/fr not_active Expired
- 1980-10-28 DD DD224782A patent/DD153894A5/de unknown
- 1980-10-29 GB GB8034792A patent/GB2065709B/en not_active Expired
- 1980-10-29 SE SE8007603A patent/SE448552B/sv not_active IP Right Cessation
- 1980-10-29 BE BE0/202625A patent/BE885920A/fr not_active IP Right Cessation
- 1980-10-30 MX MX184544A patent/MX154127A/es unknown
- 1980-10-30 ES ES496420A patent/ES496420A0/es active Granted
- 1980-10-30 SU SU802999796A patent/SU1128843A3/ru active

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1. Похвиснев А.Н. и др. Внедоменное получение Ж\|елеза за рубежом. М., Металлурги , 1964, с. 34-55. *

Also Published As

Publication number	Publication date
IT8024695A0 (it)	1980-09-16
ES8205865A1 (es)	1982-06-16
US4246024A (en)	1981-01-20
DD153894A5 (de)	1982-02-10
GB2065709B (en)	1983-09-21
AU6164180A (en)	1981-05-07
IT1141055B (it)	1986-10-01
DE3037865A1 (de)	1981-05-27
AU538947B2 (en)	1984-09-06
BR8005801A (pt)	1981-05-19
JPS56105410A (en)	1981-08-21
SE448552B (sv)	1987-03-02
AR225934A1 (es)	1982-05-14
CA1153559A (fr)	1983-09-13
ES496420A0 (es)	1982-06-16
FR2468650B1 (fr)	1984-02-17
DE3037865C2 (de)	1985-08-29
MX154127A (es)	1987-05-21
BE885920A (fr)	1981-02-16
IN153109B (fr)	1984-06-02
GB2065709A (en)	1981-07-01
SE8007603L (sv)	1981-05-01
ZM7780A1 (en)	1981-09-21
ZA805062B (en)	1981-08-26
JPS5825727B2 (ja)	1983-05-30
FR2468650A1 (fr)	1981-05-08

Publication	Publication Date	Title
SU1128843A3 (ru)	1984-12-07	Способ восстановлени железной руды до губчатого железа в шахтном реакторе
US3421869A (en)	1969-01-14	Method for the production of a mixture of hydrogen and steam
US5618032A (en)	1997-04-08	Shaft furnace for production of iron carbide
MX2011003644A (es)	2011-07-28	Proceso para produccion de hierro reducido directo.
CN108474048B (zh)	2021-02-23	通过使用合成气来生产高碳dri的方法和系统
KR20010041141A (ko)	2001-05-15	개선된 환원 가스를 이용한 직접 환원철 생산 방법 및 장치
US4070181A (en)	1978-01-24	Method for reduction of finely divided metal oxide material
SU1128842A3 (ru)	1984-12-07	Способ восстановлени измельченной железной руды до губчатого железа
EP0428098A2 (fr)	1991-05-22	Procédé de perfectionnement pour la réduction de minerais de fer
US4261734A (en)	1981-04-14	Method of making sponge iron
JPH0246644B2 (fr)	1990-10-16
US4062529A (en)	1977-12-13	Apparatus for the direct reduction of iron ore to sponge iron
JPH0246645B2 (fr)	1990-10-16
US3909244A (en)	1975-09-30	Process for directly reducing iron ores in the solid state under pressure
WO2016100445A2 (fr)	2016-06-23	Procédés et systèmes de production de fer de réduction directe intégrant un reformeur à vapeur et à dioxyde de carbone alimenté à l'aide de dioxyde de carbone recyclé
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